National Research Council of Canada

Khabat Heshami

Philip J Bustard

Benjamin J Sussman

Duncan G England

Frédéric Bouchard

Jacob Taylor

A quantum simulation method for solving a computational problem using a solid-state quantum system, the method comprising the steps of: passing a laser through a material; in the material, evolving at least some of a plurality of atoms in a first state into at least some of a plurality of atoms in a second state upon receiving energy from the laser to form at least one exciton; selecting at least one exciton site on the material wherein the at least one exciton site is separated from a neighbouring at least one exciton site by a distance less than a Rydberg blockade radius; mapping the computational problem into a problem Hamiltonian of the solid-state quantum system; measuring at least a portion of plurality of the at least one excitons to obtain a read-out of the solid-state quantum system; and determining a solution to the computational problem from the read-out.

Rydberg exciton quantum simulator

A quantum communication method comprising: at a sender, preparing photons encoded in a single spatial, spectral, and temporal (SST) mode to form a quantum signal; and introducing the quantum signal into a quantum channel; at a receiver, a detector and filtering system optically processing the quantum signal and rejecting background noise photons in the quantum channel, and performing active temporal filtering by switching the polarization of the quantum signal without substantially adding noise; and wherein the active temporal filtering minimizes saturation of the detector.

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Khabat Heshami